Merge pull request 'color is optional' (#3) from mertoalex/ballsoffline:main into main

Reviewed-on: #3

README.md

@@ -8,7 +8,9 @@ To play first create an accounts.json, you can look example file [account.def.js
 
 If you're on linux, you can do:
 ```bash
-echo '{"username":"'$USER'","color":"000000"}' > account.json
+echo '{"username":"'$USER'"}' > account.json
+# or
+echo '{"username":"'$USER'","color":"DEAD00"}' > account.json
 ```
 
 ## Credits

bf.go

@@ -11,7 +11,7 @@ const (
 	screenWidth  = 1280
 	screenHeight = 720
 	ballRadius   = 12
-	debug        = false
+	debug	= false
 )
 
 var (

errorhandling.go

@@ -15,10 +15,26 @@ func checkValid(something any) bool {
 	return true
 }
 
+func makeDefault(variable *map[string]interface{}, Type string) {
+	switch Type {
+	case "color": (*variable)[Type] = "000000"
+	default: panic(fmt.Sprint("\"", Type, "\" isn't a type!"))
+	}
+}
+
 func checkUserDataValid(userdata map[string]interface{}) {
-	for _, data := range []string{"username", "color"} {
+	//required
+	for _, data := range []string{"username"} {
 		if !checkValid(userdata[data]) {
-			panic(fmt.Sprint("\"", data, "\" isn't defined in userdata:\n", userdata))
+			panic(fmt.Sprint("\"", data, "\" isn't defined in userdata:\n\t", userdata))
+		}
+	}
+
+	//optional
+	for _, data := range []string{"color"} {
+		if !checkValid(userdata[data]) {
+			fmt.Printf("WARNING: \"%s\" isn't defined in userdata:\n\t%s\n\tgonna use default variable for that\n", data, userdata)
+			makeDefault(&userdata, data)
 		}
 	}
 }

json.go

@@ -9,7 +9,7 @@ func loadJson(file string) map[string]interface{} {
 	jsonRaw, Error := os.ReadFile(file)
 	check(Error)
 	var jsonData map[string]interface{}
-    	check(json.Unmarshal([]byte(jsonRaw), &jsonData))
+	check(json.Unmarshal([]byte(jsonRaw), &jsonData))
 	return jsonData
 }